Perhaps you should try some spelling variations:
ky trung » ky trong, ki trung, ly trung
trung ha » trung hoc, trung tam, trung cap
qua cham » qua hai, qua cac, va cham
qua than » qua thanh, qua phan, qua tan
ban hang » ngan hang
hoc ban » hoc bang, hoc dan, hoc bai
hang vi » hang va, hanh vi, hang di
cua tre » cua te, cuu tre, cua triet
te cac » tu cac, ve cac, te cao
ha hoi » hoa hoi, ha noi, xa hoi
vi cua » vai cua, di cua

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: te cac ky trung ha hoi. hieu ((qua cham) OR (qua than)) hoc ban hang vi cua tre~.
• Adding a wildcard symbol may retrieve word variants: te cac ky trung ha hoi. hieu ((qua cham) or (qua than)) hoc ban hang vi cua tre*.